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#include "../compile.h"
#include "../environment.h"
#include "../naming.h"
#include "../stdlib/datatypes.h"
#include "../stdlib/text.h"
#include "../stdlib/util.h"
#include "../types.h"
Text_t optional_into_nonnone(type_t *t, Text_t value) {
if (t->tag == OptionalType) t = Match(t, OptionalType)->type;
switch (t->tag) {
case IntType:
case ByteType: return Texts(value, ".value");
case StructType:
if (t == PATH_TYPE || t == PATH_TYPE_TYPE) return value;
return Texts(value, ".value");
default: return value;
}
}
public
Text_t promote_to_optional(type_t *t, Text_t code) {
if (t == PATH_TYPE || t == PATH_TYPE_TYPE) {
return code;
} else if (t->tag == IntType) {
switch (Match(t, IntType)->bits) {
case TYPE_IBITS8: return Texts("((OptionalInt8_t){.value=", code, "})");
case TYPE_IBITS16: return Texts("((OptionalInt16_t){.value=", code, "})");
case TYPE_IBITS32: return Texts("((OptionalInt32_t){.value=", code, "})");
case TYPE_IBITS64: return Texts("((OptionalInt64_t){.value=", code, "})");
default: errx(1, "Unsupported in type: %s", type_to_str(t));
}
return code;
} else if (t->tag == ByteType) {
return Texts("((OptionalByte_t){.value=", code, "})");
} else if (t->tag == StructType) {
return Texts("({ ", compile_type(Type(OptionalType, .type = t)), " nonnull = {.value=", code,
"}; nonnull.is_none = false; nonnull; })");
} else {
return code;
}
}
public
Text_t compile_none(type_t *t) {
if (t == NULL) compiler_err(NULL, NULL, NULL, "I can't compile a `none` value with no type");
if (t->tag == OptionalType) t = Match(t, OptionalType)->type;
if (t == NULL) compiler_err(NULL, NULL, NULL, "I can't compile a `none` value with no type");
if (t == PATH_TYPE) return Text("NONE_PATH");
else if (t == PATH_TYPE_TYPE) return Text("((OptionalPathType_t){})");
switch (t->tag) {
case BigIntType: return Text("NONE_INT");
case IntType: {
switch (Match(t, IntType)->bits) {
case TYPE_IBITS8: return Text("NONE_INT8");
case TYPE_IBITS16: return Text("NONE_INT16");
case TYPE_IBITS32: return Text("NONE_INT32");
case TYPE_IBITS64: return Text("NONE_INT64");
default: errx(1, "Invalid integer bit size");
}
break;
}
case BoolType: return Text("NONE_BOOL");
case ByteType: return Text("NONE_BYTE");
case ListType: return Text("NONE_LIST");
case TableType: return Text("NONE_TABLE");
case SetType: return Text("NONE_TABLE");
case TextType: return Text("NONE_TEXT");
case CStringType: return Text("NULL");
case PointerType: return Texts("((", compile_type(t), ")NULL)");
case ClosureType: return Text("NONE_CLOSURE");
case NumType: return Text("nan(\"none\")");
case StructType: return Texts("((", compile_type(Type(OptionalType, .type = t)), "){.is_none=true})");
case EnumType: {
env_t *enum_env = Match(t, EnumType)->env;
return Texts("((", compile_type(t), "){", namespace_name(enum_env, enum_env->namespace, Text("none")), "})");
}
default: compiler_err(NULL, NULL, NULL, "none isn't implemented for this type: ", type_to_str(t));
}
return EMPTY_TEXT;
}
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